Any suggestions on how to get sound through an HDMI cable? (I'll move this to a more appropriate place if that seems to be a good idea but this seems to be a good place for now.) I bought a new motherboard (Gigabyte GA-MA69GM-S2H) because it has an HDMI output on the motherboard. The video works through the HDMI cable but not the audio. The audio does work through the audio output jack.

If I understand the HDMI standard correctly, it includes multiplexing digital audio through the HDMI cable along with video. I'm not certain my (ViewSonic N3250W) follows the standard that far. I don't have a device which is known to put both video and audio through the HDMI cable, to test it.

But I'm guessing that the relevant Linux ALSA driver for the audio chip on your motherboard (probably snd-hda-intel) needs to catch up with this new development. I don't imagine it should be too complex, just a case of routing the S/PDIF (digital) signal to the HDMI connector.

Let's keep things in perspective, though; I see that your LCD TV has 2x 10W speakers. These cannot be too high quality, so it's probably not worth getting too fussy about. If your TV will allow HDMI input for picture along with analogue input for sound then this should be fine.
A step up in sound reproduction would be to send the S/PDIF signal from your motherboard to an external surround sound amplifier. I think that a special ALSA configuration file is required to enable the S/PDIF output in Linux.

Hey, those speakers sound good enough to me. I can barely tell any difference between mp3 at 32kbps mono, and the original CD .wav files they were condensed from. A high quality sound system would be wasted on me.

Mostly I'm excited about eliminating a wire from the mat that hangs off the back of my computer. The other day I plugged the audio into the wrong jack on the back of the display because I couldn't see what I was doing. It was several days before I figured out why the sound wouldn't work. It's dark behind the display, and the jacks face down so you can't see them without crouching down and looking up. It requires a braille-reading contortionist to connect anything to it.

i have a Benq joybook S41 laptop which has a HDMI port with nvidia geforce 8600M GS graphics card..
and i'm using puppy 3 with 2.6.21.7
puppy automatically installed the driver for the sound card... which has
HDA Intel card and with the chip Realtek ALC262...
and the alsa mixer version is 1.0.14

i don't know how to send the audio signal thru the hdmi port.. any help ?
but it works fine in winxp.. with a sharp 46" LCD TV... with 1080P support

when i open the alsamixer.. there is PCM and Front to control the volume..
one more problem is... when i play the audio in puppy the audio is heared from the speaker of the laptop and also from the headphone jack.. how to disable the speaker when i connect the headphones to the laptop ?

i use NVIDIA-100.14.19-k2.6.21.7.pet driver for my graphics card... how to change the refresh rate to 30Hz ? in which file i need to change this.. is it in xorg.conf or xorg.conf.NVIDIA

It seems my original comment about the snd-hda-intel (ALSA) driver needing to pass S/PDIF audio to the HDMI connector is slightly wrong;
since the HDMI connector is attached to the graphics chip, the graphics driver needs to make the HDMI connector accessible as an output source to the ALSA driver ... so clearly success will be achieved by the interaction of the ALSA audio driver with the Xorg graphics driver.

then refer to the earlier link for instructions. Basically, the command -

Code:

aplay -l

will reveal whether ALSA can "see" the HDMI connector as a valid output device. If so, you then need to specify the correct ALSA device number when running various audio applications, because otherwise ALSA will default to the "normal" audio output of your sound card.

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